A5022702861- Peatlands and Wetlands Ecology
- Soil Carbon and Nitrogen Dynamics
- Botany and Plant Ecology Studies
- Integrated Water Resources Management
- Atmospheric and Environmental Gas Dynamics
- Soil erosion and sediment transport
- Agriculture Sustainability and Environmental Impact
- Soil and Water Nutrient Dynamics
- Land Use and Management
- Geology and Paleoclimatology Research
- Forest Biomass Utilization and Management
- Bioenergy crop production and management
- Climate change and permafrost
- Forest ecology and management
- Global Energy Security and Policy
- Crop Yield and Soil Fertility
- Sustainable Agricultural Systems Analysis
- Hungarian Social, Economic and Educational Studies
- Climate Change Policy and Economics
- Soil and Unsaturated Flow
- Hydrocarbon exploration and reservoir analysis
- Environmental Impact and Sustainability
Latvian State Forest Research Institute "Silava"
2020-2024
State Forest Research Institute
2022-2024
Latvia University of Life Sciences and Technologies
2022
Ministry of Agriculture
2018
Nutrient-rich organic soil management in agriculture is among the critical sources of greenhouse gas (GHG) emissions globally and at European level, where most significant effects are observed Northern, Eastern, Central Europe. Growing climate change mitigation targets urge need to assess analyze current patterns policy planning look for appropriate future strategies. The objectives this research were nutrient-rich Latvia during last decade conclude whether has been targeted driven by...
Abstract. Drainage of organic soils is associated with increasing soil carbon (C) efflux, which typically linked to losses in C stock. In previous studies, drained forest have been reported as both sinks and sources depending on, e.g., nutrient moisture regime. However, most the earlier research was done boreal region, magnitude efflux impact regime on stock are likely vary across different climatic conditions ecosystems, further vegetation. A two-year study conducted hemiboreal stands...
Abstract. Drainage of organic soil is associated with increasing carbon (C) efflux, which typically linked to losses in C stock. In previous studies, drained peatland forests has been reported as both a sink and source depending on, e.g., nutrient moisture regimes. However, most the earlier research was done boreal sites, impact regime on stock likely vary across different climatic conditions ecosystems, further vegetation. this study, we examined forest floor (including ground vegetation)...
We determined the magnitude of instantaneous greenhouse gas (GHG) emissions from drainage ditches in hemiboreal peatlands Latvia during frost-free period 2021 and evaluated main affecting factors. In total, 10 research sites were established drained Latvia, including active abandoned peat extraction peatland forests. Results demonstrated that terms global warming potential, contribution CO2 to total budget GHG can exceed CH4 contribution. The average N2O forests significantly higher than...
When it comes to greenhouse gas (GHG) reduction, the role of water tables in former peat extraction areas has received considerable interest recent decades. This study analysed carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) surface-to-atmosphere fluxes from a rewetted permanently flooded comparison pristine peatland hemiboreal Latvia. Measurements GHG combined sampling using closed-chamber (opaque) method with chromatography detection method. Among studied land-use types,...
In the forest land of many European countries, including hemiboreal Latvia, organic soils are considered to be large sources greenhouse gas (GHG) emissions. At same time, growing efforts expected in near future decrease emissions from Land Use, Use Change and Forestry sector, lands with achieve enhanced contributions removals balance target set by Paris Agreement. This paper aims describe distribution soil layer thickness based on national inventory data evaluate carbon stock Latvian forests...
Greenhouse gas emissions (carbon dioxide, methane, nitrous oxide) from managed organic soils in cropland and grassland is significant part of greenhouse (GHG) emission profile Latvia.Total area Latvia around 8 %, but GHG this constitute more than 30 % the total agricultural (data vary by inventory years soil data set used).GHG measurement characterizing different land use practices can support most appropriate choice management that contributes less to amount.Within scope LIFE REstore...
Implementation of climate change mitigation measures in forestry has a key role to successfully fulfil the policy goals Land use, land use and forest sector set by Paris Agreement fully offset total GHG emissions country CO2 removals 2050.GHG from organic soils have significant impact on Latvia, however, high also indicate potential measures.This study aims evaluate drained naturally wet nutrient-rich improve knowledge management practice emissions.The is conducted 21 (Myrtillosa...
Organic soils are the largest source of GHG emissions in Latvia producing amount comparable with whole energy sector. cropland and grassland alone release about 4.5 mill. tonnes CO2 eq. annually, which is nearly twice as big total from agriculture sector Latvia. The reduction organic primary target to implement climate neutrality post-2050 period LULUCF One issues reporting different definitions soils, e.g. using Intergovernmental Panel on Climate Change (IPCC) definition (at least 10 cm...
In the Northern Hemisphere, forests play an important role in carbon storage. During past few decades eastern Baltic and Nordic regions, forest drainage has been a common occurrence, which also effect on stock. Most of studies this issue were carried out boreal zones focused short-term effects. Thus, our aim was to evaluate long-term (after 54 years) stock (CS) changes organic soil (Fibric histosols) hemiboreal forests. Three types selected drained (Myrtillosa turf. mel (Mmel)) undrained...
Organic soils in cropland and grassland are absolutely the largest source of greenhouse gas (GHG) emissions Latvia contributing to output 3.1 mill. tons CO2 eq; therefore, it is important, evaluate different management scenarios their effect on GHG emissions. In this study we compared 3 organic used agriculture: afforestation with birch retaining drainage system, following rewetting these areas as grasslands a reference scenario. We estimated carbon stock changes living biomass trees forest...
Drained organic soils in agricultural land are considered significant contributors to total greenhouse gas (GHG) emissions, although the temporal and spatial variation of GHG emissions is high. Here, we present results study on soil-to-atmosphere fluxes carbon dioxide (CO2), nitrous oxide (N2O) methane (CH4) from drained (fen) grassland. A two-year (from July 2021 June 2023) was conducted three research sites Latvia (Europe’s hemiboreal zone). Soil respiration (Rtot), CH4 N2O were determined...
Peatland ecosystem degradation and changes made in hydrology by artificial drainage may affect the biogeochemistry of peatlands and, together with projected global warming, lead to significant greenhouse gas (GHG) fluxes. Drainage increases organic matter's aerobic decomposition, native vegetation, decrease storage C. The vegetative characteristics forest types change a net GHG sink peatland source drained soils. However, soil CH4 N2O fluxes are spatially temporally (interannual, seasonal)...
Organic peat soils, common in boreal, temperate, and tropical wet climate zones, represent one of the largest natural terrestrial carbon reservoirs. Europe has approximately 33 million hectares organic with 4.2% managed 3.7% unmanaged. Grasslands, constituting 17.8% soils (1.1% Baltic countries), are often subjected to drainage, a practice transforming these carbon-rich environments into significant greenhouse gas (GHG) sources. The drainage process alters nutrient cycling, impacting...
This study aimed to assess soil organic carbon (SOC) concentration and stock in mineral soils cropland grassland Latvia, considering groups texture classes. It covered 197 sites across Latvia (152 cropland, 45 grassland). Soil profile description sampling (at depths of 0–10 cm, 10–20 20–40 cm) were conducted between 2021 2023. Laboratory analyses included bulk density (SBD), total (TC), nitrogen (TN), carbonate content, pH, extractable phosphorus (P), potassium (K), calcium (Ca), magnesium...
Abstract. Carbon dioxide (CO2) emissions from drained organic soils used for agriculture contribute significantly to the overall anthropogenic greenhouse gas budget in land use, land-use change and forestry (LULUCF) sector. To justify implementation of climate mitigation measures on these lands, it is important estimate at least regional variation annual net CO2 fluxes. This study presents first estimates fluxes nutrient-rich cropland (8 sites) grassland (12 hemiboreal region Europe,...
Sustainable agroecosystems with systematic crop rotation and diversity can promote the maintenance of soil fertility sustainable carbon cycling including CO 2 sequestration from atmosphere formation organic matter.To contribute to implementation goals European Green Deal course, it is necessary assess uptake capacity for widest possible range agricultural crops grown in a certain region.This study determined amount above-ground (Resid AG ) below-ground BG residues plants content C N fixed...
Latvia is one of the largest exporters pellets in Europe, and at same time share biofuel energy production also between developed countries. Rapid increase export raises questions about sustainability forest sector contribution produced to greenhouse gas (GHG) balance Europe. Sustainability broadly discussed issue Baltic states; particularly, due continuous wood pellets. GHG mitigation potential aspects surrounded by multiple speculations, which has be addressed comprehensive comparison...
The study compares 9 forest management scenarios in birch plantations cropland and grassland with mineral organic soils.Calculation period is 40 years for all scenarios.The proves that establishment of leads to reduction greenhouse gas (GHG) emissions by 317-1776 tons CO2 eq.ha -1 or 7.9-44.4tons per year.The GHG significantly influenced growth conditionsin soils emission 6 times higher than soils.In most the reductions occur during after establishment.In continues steadily due from compared...
<p>In the terrestrial biosphere, peatlands represent most important long-term soil carbon storage. They cover only 3% of land surface but are responsible for about one-third total. Ecosystem degradation and changes made in hydrology may affect biogeochemistry and, together with projected global warming, lead to significant greenhouse gas fluxes. Aeration increases organic matter's aerobic decomposition enhances wetlands’ change from a net sink dioxide...